User manual

180 190 200 210 220 230 240 250 260
0.0
2.5
5.0
7.5
10.0
12.5
15.0
17.5
20.0
22.5
25.0
OUTPUT POWER (W)
INPUT VOLTAGE (V
RMS
)
Mod C (10 LEDs)
Mod B (8 LEDs)
Original (6 LEDs)
Mod A (4 LEDs)
180 190 200 210 220 230 240 250 260
0.950
0.955
0.960
0.965
0.970
0.975
0.980
0.985
0.990
0.995
1.000
POWER FACTOR
INPUT VOLTAGE (V
RMS
)
180 190 200 210 220 230 240 250 260
2
3
4
5
6
7
8
9
10
11
12
OUTPUT POWER (W)
LINE VOLTAGE (V
RMS
)
10 LEDs
8 LEDs
4 LEDs
6 LEDs
Typical Performance Characteristics www.ti.com
Figure 9. Power Factor vs. Line Voltage Figure 10. Output Power vs. Line Voltage
Original Circuit
Figure 11. Output Power vs. Line Voltage
Modified Circuits
10
AN-2097 LM3444 - 230VAC, 8W Isolated Flyback LED Driver SNVA462F–November 2010–Revised May 2013
Submit Documentation Feedback
Copyright © 2010–2013, Texas Instruments Incorporated